Miniature laser head for laser edge sealing

Abstract

The utility model discloses a miniature laser head for laser edge sealing, which comprises a main body, a mirror seat fixed at the left end of the main body, two L-shaped water outlet holes arranged at the upper end of the mirror seat, a collimation connecting piece fixed at the right end of the main body, a collimating mirror fixed inside the collimation connecting piece, a cover plate fixed at the lower end of the main body, and a protective lens fixed between the cover plate and the main body. A lower water outlet hole is formed in the front end of the main body, a cylindrical cavity is formed in the main body along the long edge of the main body, an integral mirror fixedly connected with a mirror base is arranged at the left end of the cavity, a spring ring is arranged at the right end of the cavity, a protrusion is arranged at the right end of the collimating mirror, a groove corresponding to the protrusion on the outer wall of the collimating mirror is formed in the collimating connecting piece, and the spring ring is arranged in the cavity through the protrusion corresponding to the groove. The rotation of the collimating mirror is limited, the collimating mirror is prevented from rotating, meanwhile, the spring ring is arranged at the left end of the collimating mirror, the collimating mirror is extruded, the collimating mirror is prevented from moving left and right, and laser beams of the collimating mirror can be converted into parallel light beams easily.

Description

Technical Field

[0001] The utility model relates to the technical field of a micro laser head for laser edge sealing, in particular to a micro laser head for laser edge sealing. Background Art

[0002] Edge banding machine is a kind of woodworking machinery. Edge banding machine belongs to the category of solid wood machinery. Edge banding machine is a device for trimming and banding the edges of various plank-like wood materials such as blockboard, solid wood board, particle board and door panel. Edge banding machine is used for edge banding as the name implies, but the edge banding procedure is highly automated and can complete many processes in straight-face special-shaped edge banding, such as conveying, gluing, cutting, front and back alignment, upper and lower trimming, upper and lower fine trimming, upper and lower scraping, polishing, etc.

[0003] However, the existing laser edge banding machine edge banding laser head will encounter the following problems when in use:

[0004] 1. When the collimator is fixed, since the collimator is inserted into the fixing part, the collimator will shake during the reciprocating movement of the laser head, which makes it impossible to accurately position the light beam and convert the laser beam into a parallel beam.

[0005] 2. Use a rubber ring to squeeze and fix the collimator. During use, the laser will generate high temperature, which will melt the rubber ring, making it unusable and unable to continue squeezing and fixing the collimator. Utility Model Content

[0006] The purpose of the utility model is to provide a micro laser head for laser edge sealing, which solves the problems in the above-mentioned prior art.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a micro laser head for laser edge sealing, comprising a main body, a mirror seat is fixed at the left end of the main body, two L-shaped water outlets are provided at the upper end of the mirror seat, a collimating connector is fixed at the right end of the main body, a collimating mirror is fixed inside the collimating connector, a cover plate is fixed at the lower end of the main body, a protective lens is fixed between the cover plate and the main body, a lower water outlet is provided at the front end of the main body, a cylindrical cavity is provided inside the main body along its long side, an integrator mirror fixedly connected to the mirror seat is provided at the left end of the cavity, a spring coil is provided at the right end of the cavity, the spring coil is in contact with the left end of the collimating mirror, four water holes are provided at the four corners of the right end of the collimating connector, the water holes are divided into an upper water inlet and a lower water inlet, the lower water inlet passes through the main body and is connected with the lower water outlet, and the upper water inlet passes through the main body and the L-shaped water outlet.

[0008] Preferably, a cooling cavity is provided between the integrating mirror and the mirror seat, and the cooling cavity is communicated with the lower end of the L-shaped water outlet.

[0009] Preferably, a protrusion is provided on the outer wall of the right end of the collimating mirror, and a groove corresponding to the protrusion on the outer wall of the collimating mirror is provided inside the collimating connecting piece.

[0010] Preferably, a plurality of notches are provided at the left end of the spring ring, a protrusion corresponding to the notch is provided inside the alignment connector, a plurality of first through holes are provided on the outer wall of the right end of the spring ring and along its circumference, a plurality of second through holes are provided at the right end of the first through holes, the second through holes are provided on the spring ring along its circumference, and the first through holes and the second through holes are staggered with each other.

[0011] Preferably, the spring ring is made of brass.

[0012] Preferably, the axis of the collimating lens is located on the same straight line as the axis of the cavity inside the main body.

[0013] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0014] 1. A protrusion is provided at the right end of the collimator lens, and a groove corresponding to the protrusion on the outer wall of the collimator lens is provided inside the collimator connector. The protrusion corresponds to the groove to limit the rotation of the collimator lens to prevent the collimator lens from rotating. At the same time, a spring ring is provided at the left end of the collimator lens to squeeze the collimator lens to prevent the collimator lens from moving left and right, thereby ensuring the firmness of the collimator lens fixation and facilitating the conversion of the collimator lens laser beam into a parallel beam.

[0015] 2. The spring coil is made of brass, which makes the melting point of the spring coil higher and can withstand high temperatures. At the same time, a cooling cavity is provided between the integrating mirror and the mirror seat, which is conducive to the entry of cooling water into the cooling cavity to cool the integrating mirror and prevent the integrating mirror from changing due to excessive temperature, which in turn causes the integrating mirror to fail to focus the light beam. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 3 It is a cross-sectional schematic diagram of the utility model;

[0019] Figure 4 It is an overall schematic diagram of the spring coil of the utility model;

[0020] Figure 5 It is an overall schematic diagram of the mirror holder of the utility model.

[0021] Explanations in the figure: 1. Main body; 2. Collimating connector; 3. Mirror seat; 4. Cover plate; 101. Lower water outlet; 201. Upper water inlet; 202. Lower water inlet; 203. Collimating mirror; 204. Spring ring; 301. L-shaped water outlet; 302. Integrating mirror; 303. Cooling chamber; 401. Protective lens; 2041. Notch; 2042. First through hole; 2043. Second through hole. DETAILED DESCRIPTION

[0022] The following is a further detailed description of the implementation of the present utility model in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present utility model, but cannot be used to limit the scope of the present utility model.

[0023] In the description of the present invention, unless otherwise specified, "multiple" means two or more; the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third" and the like are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0024] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0025] See also Figure 1 , Figure 2 and Figure 3A micro laser head for laser edge sealing, comprising a main body 1, a mirror seat 3 is fixed on the left end of the main body 1, two L-shaped water outlet holes 301 are provided on the upper end of the mirror seat 3, the mirror seat 3 is used to fix an integrator mirror 302, thereby fixing the integrator mirror 302, preventing the integrator mirror 302 from moving during the operation of the device, causing the integrator mirror 302 to be unable to focus the light beam into a required light spot, thereby affecting the use effect of the device, a collimating connector 2 is fixed on the right end of the main body 1, a collimating mirror 203 is fixed inside the collimating connector 2, the axis of the collimating mirror 203 is on the same straight line as the axis of the internal cavity of the main body 1, a protrusion is provided on the outer wall of the right end of the collimating mirror 203, a groove corresponding to the protrusion on the outer wall of the collimating mirror 203 is provided inside the collimating connector 2, and the collimating mirror 203 is installed inside the collimating connector 2 The laser beam is converted through the collimator 203, and the collimator 203 converts the laser beam into a parallel beam to ensure that the beam is parallel. A protrusion is provided at the right end of the collimator 203, and a groove corresponding to the protrusion on the outer wall of the collimator 203 is provided inside the collimator connector 2. The rotation of the collimator 203 is restricted by the correspondence between the protrusion and the groove to prevent the collimator 203 from rotating. A cover plate 4 is fixed to the lower end of the main body 1, and a protective lens 401 is fixed between the cover plate 4 and the main body 1. The cover plate 4 is fixedly connected to the main body 1 by bolts, and a protective lens 401 is provided between the main body 1 and the cover plate 4. The protective lens 401 is clamped by the main body 1 and the cover plate 4 to protect the integrator mirror 302, so as to prevent the slag generated when the device performs laser edge sealing on the object from entering the interior of the main body 1 and sticking to the integrator mirror 302 to affect the focusing of the integrator mirror 302.

[0026] See also Figure 3 , Figure 4 and Figure 5A lower water outlet 101 is provided at the front end of the main body 1, and a cylindrical cavity is provided inside the main body 1 along its long side. An integrator mirror 302 fixedly connected to the mirror seat 3 is provided at the left end of the cavity. The integrator mirror 302 is used to focus the parallel light beam converted by the collimator 203 to form a corresponding shape, and irradiate the focused light spot on the edge of the object for edge sealing to ensure the edge sealing effect of the object. A spring ring 204 is provided at the right end of the cavity. The material of the spring ring 204 is brass. The material of the spring ring 204 is brass, so that the melting point of the spring ring 204 is high and can withstand high temperature. The spring ring 204 contacts the left end of the collimator 203. Four water holes are provided at the four corners of the right end of the collimator connector 2. The water holes are divided into upper water inlet and lower water outlet holes. The upper water inlet 201 and the lower water inlet 202, the lower water inlet 202 passes through the main body 1 and is connected with the lower water outlet 101, the upper water inlet 201 passes through the main body 1 and the L-shaped water outlet 301, the cooling liquid is filled in the upper water inlet 201, and the cooling liquid flows through the main body 1 and enters the L-shaped water outlet 301. Since the lower end of the L-shaped water outlet 301 is connected with the cooling cavity 303, the cooling water in the upper water inlet 201 will enter the cooling cavity 303 to cool the integrating mirror 302 to prevent the integrating mirror 302 from being overheated. Finally, the cooling water in the upper water inlet 201 is discharged through the L-shaped water outlet 301 to form a circulation, and the cooling liquid is filled in the lower water inlet 202, and the cooling liquid passes through the main body 1 and is discharged from the lower water outlet 101 to form a circulation. 201 and the lower water inlet 202 are filled with circulating coolant to cool the device and prevent the overall temperature of the device from being too high. A cooling cavity 303 is provided between the integrator mirror 302 and the mirror seat 3. The cooling cavity 303 is communicated with the lower end of the L-shaped water outlet 301. At the same time, a cooling cavity 303 is provided between the integrator mirror 302 and the mirror seat 3, which is conducive to the cooling water entering the cooling cavity 303 to cool the integrator mirror 302 and prevent the integrator mirror 302 from being too high in temperature, causing the integrator mirror 302 to change, thereby causing the integrator mirror 302 to fail to achieve the effect of beam focusing. A plurality of notches 2041 are provided at the left end of the spring ring 204, and a protrusion corresponding to the notch 2041 is provided inside the collimating connector 2. The protrusion inside the spring ring 204 is engaged with the notch 2041 correspondingly, so as to limit the spring ring 204 and prevent the spring ring 204 from rotating. The outer wall of the right end of the spring ring 204 is provided with a plurality of first through holes 2042 along its circumference. The right end of the first through holes 2042 is provided with a plurality of second through holes 2043. The second through holes 2043 are provided on the spring ring 204 along its circumference. The first through holes 2042 and the second through holes 2043 are staggered with each other. The first through holes 2042 and the second through holes 2043 are semi-arc-shaped. By providing the first through holes 2042 and the second through holes 2043 on the spring ring 204 and staggering the first through holes 2042 and the second through holes 2043, the right end of the spring ring 204 is hollowed out.The spring ring 204 is compressed and then restored by itself, and the spring ring 204 squeezes the collimator 203, squeezing and fixing the collimator 203 to prevent the collimator 203 from sliding.

[0027] When the utility model is used:

[0028] First, a laser generator is connected to the right end of the collimating connector 2. The laser generator is an existing device. The cooling liquid circulation pipeline is connected in series between the upper water inlet 201 and the L-shaped water outlet 301, and between the upper water inlet 201 and the lower water outlet 101;

[0029] Then, the cooling liquid in the upper water inlet 201 flows through the main body 1 and enters the L-shaped water outlet 301. Since the lower end of the L-shaped water outlet 301 is connected to the cooling cavity 303, the cooling water in the upper water inlet 201 will enter the cooling cavity 303 to cool the integrating mirror 302. Finally, the cooling water in the upper water inlet 201 is discharged through the L-shaped water outlet 301 to form a cycle, and the cooling liquid in the lower water inlet 202 is discharged from the lower water outlet 101 through the main body 1 to form a cycle, thereby cooling the device.

[0030] Next, the laser generator emits a laser beam, which is transformed into a parallel beam by the collimator 203, and then the parallel beam is focused and reflected by the integrator 302 to form a light spot of a desired shape;

[0031] Finally, the device is moved to irradiate the light spot formed by the reflection of the integrating mirror 302 onto the surface of the object that needs edge sealing, thereby performing laser edge sealing on the object.

[0032] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A micro laser head for laser edge sealing, characterized in that: The invention comprises a main body (1), a mirror seat (3) being fixed at the left end of the main body (1), two L-shaped water outlet holes (301) being provided at the upper end of the mirror seat (3), a collimating connecting piece (2) being fixed at the right end of the main body (1), a collimating mirror (203) being fixed inside the collimating connecting piece (2), a cover plate (4) being fixed at the lower end of the main body (1), a protective lens (401) being fixed between the cover plate (4) and the main body (1), a lower water outlet hole (101) being provided at the front end of the main body (1), and a circular water outlet hole (101) being provided inside the main body (1) along its long side. A cylindrical cavity, wherein an integrating mirror (302) fixedly connected to a mirror seat (3) is provided at the left end of the cavity, a spring ring (204) is provided at the right end of the cavity, the spring ring (204) is in contact with the left end of a collimating mirror (203), four water holes are provided at the four corners of the right end of the collimating connecting member (2), the water holes are divided into an upper water inlet (201) and a lower water inlet (202), the lower water inlet (202) passes through the main body (1) and is connected to the lower water outlet (101), and the upper water inlet (201) passes through the main body (1) and the L-shaped water outlet (301).

2. The micro laser head for laser edge sealing according to claim 1, characterized in that: A cooling cavity (303) is provided between the integrating mirror (302) and the mirror seat (3), and the cooling cavity (303) is communicated with the lower end of the L-shaped water outlet hole (301).

3. The micro laser head for laser edge sealing according to claim 1, characterized in that: The outer wall of the right end of the collimating mirror (203) is provided with a protrusion, and the interior of the collimating connecting piece (2) is provided with a groove corresponding to the protrusion on the outer wall of the collimating mirror (203).

4. The micro laser head for laser edge sealing according to claim 1, characterized in that: The left end of the spring ring (204) is provided with a plurality of notches (2041); a protrusion corresponding to the notch (2041) is provided inside the alignment connector (2); a plurality of first through holes (2042) are provided on the outer wall of the right end of the spring ring (204) and along its circumference; a plurality of second through holes (2043) are provided at the right end of the first through holes (2042); the second through holes (2043) are provided on the spring ring (204) along its circumference; and the first through holes (2042) and the second through holes (2043) are staggered with each other.

5. The micro laser head for laser edge sealing according to claim 1, characterized in that: The material of the spring ring (204) is brass.

6. The micro laser head for laser edge sealing according to claim 1, characterized in that: The axis of the collimating mirror (203) and the axis of the internal cavity of the main body (1) are located on the same straight line.

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